Becker, G. F. (1888). Geology of the Quicksilver Deposits of the Pacific Slope, with an atlas (1a. ed.). Government Printing Office.
Citace podle Chicago (17th ed.)Becker, George F. Geology of the Quicksilver Deposits of the Pacific Slope, with an Atlas. 1a. ed. Washington, D.C: Government Printing Office, 1888.
Citace podle MLA (9th ed.)Becker, George F. Geology of the Quicksilver Deposits of the Pacific Slope, with an Atlas. 1a. ed. Government Printing Office, 1888.
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